Clinical Psychologist,
Dr. Antonio Acuna
SAGE Center, Denver

Dr. Antonio Acuna is a licensed psychologist with a doctorate in clinical psychology and a Colorado School Psychology Certification. In private practice since 1993, his specialty is in school-related problems such as ADHD, learning disabilities, gifted education, anger management, autism spectrum disorders, and second language acquisition. In addition, Tony is bilingual in Spanish and conversational French.

Tony comments, “I am fascinated by how children learn! How do they acquire such vast storehouses of knowledge? How do they solve tricky, complex problems?” 

With a doctorate in clinical psychology from the University of Loyola-Chicago, Tony subsequently completed a two-year, post-doctorate in Couple and Family Therapy at Northwestern University. Perhaps commenting upon his own life’s pursuits, as much as his hopes for his students he offers, “the beauty of learning is that it is a lifelong process.” 

Tony continues, “Executive Function intrigues me; how do children manage time, initiate tasks, and cope with life's little adversities? These questions are the basis of my work.”
“I am drawn to SAGE for several reasons. Its child-friendly environment impresses me, as every child seems truly happy to be at SAGE. I like their comprehensive approach to evaluation and intervention, which is based on ongoing communication. Finally, I love how each treatment plan is customized to meet that child's unique needs. SAGE embraces the whole child!”
Following a rich professional career, Tony retired from the Denver Public School system, where he had worked as a School Psychologist. Tony will join our team at SAGE Center Denver to provide psycho-educational assessments of children who may have giftedness, learning disorders, ADHD, autism spectrum disorders, anxiety or mood disorders, or some combination of these. Our growing community of families is fortunate indeed. 

We at SAGE Center for Gifted extend a warm welcome to Tony – grateful for his multi-lingual talent, depth of understanding and experience.

Clinical Psychologist,
Wendy Cowperthwaite, Psy.D
SAGE Center, Denver

Dr. Wendy Cowperthwaite is honored to be a resource for families through the SAGE Center. She works with families using an approach that honors each child’s individual personality and the wisdom parents bring to her about the child. 

Experienced with a broad variety of children, Dr. Cowperthwaite provides psycho-educational assessment of children who may have giftedness, learning disorders, ADHD, anxiety or mood disorders, or some combination of these. She delights in discovering how each child learns, and she is keenly interested in working with parents to support their son’s or daughter’s learning profile. She is grateful for the holistic model of understanding and serving children that SAGE provides.

Wendy received her received her bachelor’s, master’s and doctoral degrees from the University of Denver. Her professional experience includes working in school settings and private agencies, with students ranging from preschool through college. 

She is a parent to three unique learners ranging in age from elementary school to college. All her children have at some point been through the assessment process, and one is a twice-exceptional learner. Having been on “both sides of the desk,” Wendy appreciates the thoughtfulness that goes into parenting choices about learning assessments, identification of giftedness and other diagnoses, school placement, and establishing outside services to support a child. She strives to provide post-testing recommendations that are both useful and practical.

"It is an honor to partner with Renu Rose and the SAGE Center. Renu and the other professionals at SAGE bring a deep understanding and esteem for the blessings and the extraordinary challenges that come with being a gifted child and parenting gifted children. It is my privilege to come alongside SAGE Center families, providing information to help children and families flourish.” 

Clinical Psychologist,
Suzanne M. Hamm, Ph.D.
SAGE Center, Boulder/Denver

Suzanne Hamm began her career in 1972 first as a school psychologist for the Denver Public Schools, and then later, as a counseling psychologist in private practice. Her school psychology training was obtained from the University of Wisconsin and her doctorate from the University of Denver.

Dr. Hamm’s work with public and private schools has resulted in a rich understanding of children and what it takes for them to reach their potential. She specializes in assessments and educational programming for the gifted and also for children with AD/HD and other learning challenges. Sometimes all three of these conditions are seen in one child.

Suzanne offers, “After 35 years of practicing psychology, I am pleased to be affiliated with Renu Rose and her Sage Center for the Gifted. This is a marvelous organization and director that meets children where they are, and supports and lifts them to a new awareness of their gifts. It is a blessing and a privilege to be able to observe Renu and her educators work with these children. Of the many outstanding educators I have met, Renu and her Sage Center which illustrates the power of Renu’s giftedness in working with families and children.” – Suzanne Hamm

Clinical Child Psychologist,
Roland Rotz, Ph.D.
SAGE Center, Santa Barbara

Roland Rotz, Ph.D. is a clinical child psychologist and director of the Lifespan Development Center in Carpinteria, California. For over 30 years Dr. Rotz has specialized in providing a full range of diagnostic and clinical services for children. He focuses on appreciating and embracing the complexities of the unique characteristics associated with gifted and twice exceptional children and adults.

To empower the unique strengths of those with ADHD, Dr. Rotz wrote the book, Fidget to Focus; Outwit Your Boredom: Sensory Strategies for Living with ADD.

Dr. Rotz's style in working with the unique needs of gifted children and their families is an especially empathic one, gently flowing with their gifts and their sensitivities. He is a highly experienced clinician with keen expertise and insight in assessing for giftedness, as well as providing insightful guidance on the strengths and needs of gifted children across a developmental spectrum from preschool through adolescence.

Licensed Psychologist,
Emily Brown Werner, Ph.D.
SAGE Center, Boulder/Denver

Emily Brown Werner specializes in the assessment of a variety of learning differences, including working with non-traditional learners, children with variable cognitive profiles, gifted learners, those with developmental concerns such as ADHD or Autism Spectrum Disorders, and Twice Exceptional children. 

Dr. Werner attended Washington University in St. Louis as an undergraduate, and received her Ph.D. from the University of Washington in Seattle. She understands the different kinds of issues that may interfere with classroom performance, social development, mood, emotional regulation, and well-being among gifted children. 

Dr. Werner views her role on the Sage team as helping to put the child and his/her family on a path toward healthy development that maximizes strengths and provides support for weaknesses. 

“I believe in the right of every child to be supported by adults who are empowered with knowledge and strategies to help them.” – Emily Brown Werner


School Psychologist,
Michael G. Kurtz

“Why would a child not do well if they could do well? Regardless of behavior, motive, or intent, children do well if they can. When they don’t do well, there is ALWAYS a reason, and I consider it my mission to identify those reasons and intervene accordingly.” – Michael G. Kurtz

SAGE Center is honored to welcome Michael G. Kurtz, Ed.S, to provide assessment support for our growing educational services centers. He is a registered psychotherapist in private practice providing both assessment services and counseling. He has an Education Specialist Degree (Ed.S) from the University of Colorado at Denver with a concentration in Therapeutic Interventions for Children and Adolescents, and a B.S. in psychology, and an instrumental music minor from Colorado State University.

As a Member of National Association of School Psychologists (NASP) and the Colorado Society of School Psychologists (CSSP), Michael has been a practicing school psychologist since 2002. He has knowledge, expertise, and experience with children demonstrating a wide array of learning differences ranging from significant disabilities to giftedness, and frequently both together (twice exceptionality).

Michael currently works with Jefferson County School’s Central Assessment Team and has provided assessment services for many of the district’s programs and most significantly impacted students. Michael is a certified SENG (Social Emotional Needs of the Gifted) facilitator and has successfully supported/advised countless parents about the social and emotional needs of their gifted children.

He is currently a member the Jefferson County Public Schools Crisis response team as well as the Colorado Society of School Psychologists State Wide Crisis Response team. He is dually licensed by both CDE and DORA to provide services both in and out of school.

Michael’s professional background with children is very diverse. While in college, he volunteered his time on a suicide hotline where many of his calls were from teens in crisis. Shortly thereafter, Michael became a Residential Program Manager for 11 developmentally disabled children and charged with their total and complete care 24/7. After becoming a school psychologist in 2002, Michael sought specialized training through both NOVA (National Organization of Victim’s Assistance) and NASP (National Association of School Psychologists) for crisis response. Since 2005, Michael has been called to respond to every one of Colorado’s high profile school crises.

We are pleased to have Michael bring his years of exceptional expertise and diversity of experience to our families at SAGE!

Meet our other professionals